This band went on a Mil-spec 3351 Luminox. The original rubber band was great but to firm for real comfort. I purchased this band to replace the original rubber band. A huge improvement, much more flexible, and 1000 times more comfortable. Its hard to tell your even wearing a watch. Definately a huge upgrade. I'd recommend this to anyone who may find the origional band much to firm.
For info purposes: you will need 2 small screwdrivers, (one on each side) to adjust the band links. No one tells u this when you purchase this band.